Which of the following contract fields is excluded from changes?

The correct choice regarding which contract field is excluded from changes is the Supplier. In contract management within systems like SAP Ariba, the Supplier field represents the party entering into a contractual agreement. Once a contract has been executed and the supplier is identified, changing the supplier would fundamentally alter the nature of the agreement, which is typically not permissible.

This restriction is crucial because it helps maintain the integrity of the contract and the contractual relationship established between the buyer and the supplier. Changing the supplier could lead to legal and operational issues, including compliance risks or potential breaches of contract. Therefore, in the context of contract fields, the supplier is a critical and fixed element that cannot be changed without creating an entirely new contract.

By contrast, fields such as Contract Duration, Document Number, and Pricing Terms may generally be subject to revisions or amendments based on negotiations or shifting requirements of the business. These fields are designed to provide flexibility in managing contracts while maintaining the overall structure of the agreement.